My comment was in general. We can't press like crazy when we have the likes of Silva, Jorgi, Azpi, and now Auba as starters, more often than not.
With regards to the bolded - Chalobah, Kepa and Pulisic were seen as surplus to requirements not so long ago, and the manager thinks bringing on Ziyech was a smart idea.
We've lacked fight for years now, and the players we've brought in don't have any either.